Open Fortress Server Maps and Map Rotation

Maps and Map Rotation in Open Fortress

As of 2024, Open Fortress ships with approximately 53 official maps: 38 Deathmatch, 10 Duel, 3 MCTF, and 1 Lethal Lockdown. Maps are identified by their filename prefix, which also determines the game mode.

Map Prefixes by Mode

Notable Maps

Deathmatch:

dm_crossfire       ← TF2 port; popular default starting map
dm_well
dm_harvest
dm_2fort           ← TF2 port adapted for DM

Duel:

duel_arena
duel_ (various small arena maps)

Merc CTF:

mctf_2fort         ← CTF adaptation of 2fort

Setting the Starting Map

Pass the starting map as a launch argument. dm_crossfire is the most commonly used default for DM servers:

./srcds_run -console -game open_fortress -port 27015 \
  +maxplayers 24 +map dm_crossfire

Automatic Map Rotation

Map rotation is controlled by mp_timelimit in server.cfg. When the time limit expires, the server loads the next map in mapcycle.txt.

mp_timelimit 20    // rotate every 20 minutes

Set to 0 to disable time-based rotation (maps only change on manual command or when mp_fraglimit / mp_maxrounds triggers).

mapcycle.txt

open_fortress/cfg/mapcycle.txt lists the maps the server cycles through. One map name per line, no file extension:

dm_crossfire
dm_well
dm_harvest
dm_2fort

Keep the rotation to a single prefix type per server unless you are intentionally running a mixed-mode server. Mixing dm_ and duel_ maps in the same rotation will produce inconsistent mode behavior.

Community and Custom Maps

Community maps can be installed by placing .bsp files in open_fortress/maps/. Add the map name to mapcycle.txt and optionally maplist.txt (used by SourceMod's nomination system if you have it installed).

The Open Fortress community distributes custom maps through the official Discord and community forums. There is no Steam Workshop server subscription for OF — custom maps must be manually downloaded and placed on the server.

For distributing custom maps to players without slow in-game download speeds, configure a FastDL URL:

sv_downloadurl "http://yourcdn.example.com/open_fortress/"

Mirror your open_fortress/ directory on an HTTP server and point sv_downloadurl at the root.

Manual Map Change

From the server console or via RCON:

changelevel dm_well

Or with SourceMod installed:

rcon sm_map dm_harvest

Related

• Open Fortress Game Modes
• Open Fortress server.cfg Reference
• Open Fortress Server Admin and RCON
• SourceMod and Plugins on Open Fortress